CN1632430A

CN1632430A - Refrigeratory water-cooled condenser energy accumulation type recirculation refrigerating technology

Info

Publication number: CN1632430A
Application number: CN 200410065960
Authority: CN
Inventors: 包军婷; 郭康宁
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-12-28
Filing date: 2004-12-28
Publication date: 2005-06-29

Abstract

The present invention provides a refrigeratory water-cooled condenser energy accumulation type recirculation refrigerating technology, an ice regenerator, which is composed of a set or multiple sets of ice storing rack pipes, is arranged in the recirculation water pool of the refrigeration system, the set or multiple sets of ice storing rack pipes in the ice regenerator connect to the input terminal of the compression condensation set in the cool accumulation and production system, and composes an independent accumulation system with the cooling tower. The invention arranges an ice regenerator in the recirculation water pool, which reduce the average temperature by 10 DEG C in summer to 25 DEG C; the condensation pressure is averagely reduced by 0.2 mp[alpha] to 1.0mp[alpha]; the integration energy consumption is reduced by 15-35 percents, and the COP value of the efficiency ratio is increased by 30 percents.

Description

Refrigeratory water-cooled condenser energy accumulation type recirculation refrigerating technology

Technical field

What the present invention relates to is a kind of refrigeratory water-cooled condenser energy accumulation type recirculation refrigerating technology that is applicable to big-and-middle-sized freezer, belongs to the energy-storage refrigeration technical field.

Background technology

Prior art is that all heats of freezer are carried out thermal conversion through water cooled condenser and cooling water, and recirculated cooling water relies on cooling tower to keep 3-5 ℃ the temperature difference.Along with the rising of ambient air temperature, and the present warm effect in the whole world, most of freezer summers, corresponding condensing pressure also raise because the rising of coolant water temperature, usually about 1.4mp α, even near limiting pressure 1.55mp α.Condensing pressure is the crux parameter of refrigeration usefulness, and it depends on coolant water temperature, is inversely proportional to efficiency ratio COP value.Coolant water temperature is by 5 ℃ of 20 ℃ of every risings, and energy consumption increases 10-15%, and coolant water temperature is during near 40 ℃, and energy consumption increases about 56%.Safety to operation directly constitutes irreversible serious threat simultaneously.About more than 600 ten thousand tons of the existing big-and-middle-sized freezer of China, year power consumption more than 1,500,000,000 is spent, and does not still have at present to solve the higher technological means of condensing pressure effectively, and is annual because of nearly more than 200,000,000 degree of the higher and many power consumption of temperature.Though the cold-storage technology is general at air conditioner industry, energy-saving benefit is obvious, because the sink temperature of its cold-storage and the Ku Wen of freezer differ tens degree, therefore can't apply mechanically by the air conditioner cold accumulation pattern.

Summary of the invention

The objective of the invention is to defective, propose a kind of alternative use, handled easily, obviously improve the refrigeratory water-cooled condenser energy accumulation type recirculation refrigerating technology of efficiency ratio COP value at above-mentioned existence.Technical solution of the present invention: it is characterized in that in the circulating water pool of refrigeration system, establishing Cold-storage using ice, this Cold-storage using ice is made up of one or more groups ice-reserving comb, one or more groups ice-reserving comb in the Cold-storage using ice links to each other by the input of the Condensing units in ammonia liquor separator and the regenerative cooling system, constitutes independently cold accumulation system.Advantage of the present invention: Cold-storage using ice is set in circulating water pool, makes the summer coolant water temperature on average reduce by 10 ℃, reach 25 ℃; Condensing pressure on average reduces 0.2mp α, reaches 1.0mp α, and comprehensive energy consumption reduces 15-30%, and efficiency ratio COP value improves about 30%.It utilizes national time-of-use tariffs policy, in the low ebb electricity price period recirculated cooling water of condenser is carried out cold-storage, and the electricity period is carried out power conversion at the peak, thereby reduction condensing pressure, improve efficiency ratio COP value, reach the safe handling of refrigeration system, and make power consumption reduce 15-30% at high temperature season.

Accompanying drawing is an Application Example structural representation of the present invention

Among the figure 1 is cooling tower, the 2nd, condenser, the 3rd, and the cooling water of refrigeration system, the 4th, circulating water pool, the 5th, WC cooling-water temperature sensor, the 6th, water pump, the 7th, the vertical ice-reserving comb of LXB type, the 8th, ammonia liquor separator (model AF-150), the 9th, condenser, the 10th, energy storage equipment, the 11st, compressor, 12 are 30 tons of cooling towers, the 13rd, liquid reservoir, the 14th, oil eliminator.A is 1 of a compression condensation refrigeration unit (model 4AV125).

The specific embodiment

1 compression condensation refrigeration unit A, 30 tons of water formula cooling towers 12 are according to circulating water pool water capacity and the paddy electricity period vertical ice-reserving comb of LXB type that the cold storage capacity thermal technology calculates that conforms to.Dispose corresponding ammonia liquor separator 8.In the circulating water pool of refrigeration system, establish Cold-storage using ice, this Cold-storage using ice is made up of one or more groups ice-reserving comb 7, and one or more groups ice-reserving comb 7 in the Cold-storage using ice and the Condensing units A of refrigeration system and ammonia liquor separator 8 and cooling tower 12 constitute independently cold accumulation system.Be provided with compressor 11 among the compression condensation refrigeration unit A, condenser 9, liquid reservoir 13 and oil eliminator 14.

When the night dip electricity price, by independently small-sized-15 ℃ of refrigeration unit, to being located at a group or the vertical ice-reserving comb of N group LXB type in the circulating water pool, take the gravity force liquid-supply refrigeration, water temperature in the circulating water pool is reduced to lower limit (2 ℃, water does not freeze, comb Bao Bing) accumulation of energy.When second day peak phase during electricity price, utilize the latent heat of fusion balance recirculated cooling water temperature of ice.Because water temperature is low, can significantly reduce the operation electric power of the refrigeration system same period, reach with low ebb level equalization peak value electricity price, reduce condensing pressure, improve the purpose of COP value.Water temperature goes back up to that temperature is the upper limit before the cold-storage in the pond of balance period, be between the upper and lower limit of water temperature accumulation of energy valid expiration date, its time depend on accumulation of energy comb area and frozen melt dissatisfied latent heat.

Claims

1, refrigeratory water-cooled condenser energy accumulation type recirculation refrigerating technology, it is characterized in that in the circulating water pool of refrigeration system, establishing Cold-storage using ice, this Cold-storage using ice is made up of one or more groups ice-reserving comb (7), and one or more groups ice-reserving comb in the Cold-storage using ice links to each other by the input of the Condensing units (A) in ammonia liquor separator (8) and the regenerative cooling system.